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Matrosova, Vera A.; Volodin, Ilya A.; Volodina, Elena V.; Babitsky, Andrey F. (2007). "Pups crying bass: vocal adaptation for avoidance of age-dependent predation risk in ground squirrels?". Behav Ecol Sociobiol. 62 (2): 181–191. doi:10.1007/s00265-007-0452-9. S2CID5688475.
Shilova, S. A.; Neronov, V. V.; Shekarova, O. N.; Savinetskaya, L. E. (2010). "Dynamics of colonies of the speckled ground squirrel ( Spermophilus suslicus Guld., 1770) on the northern boundary of the habitat". Biology Bulletin. 37 (5): 532–536. Bibcode:2010BioBu..37..532S. doi:10.1134/S1062359010050134. S2CID25563611.
Shilova, S. A.; Neronov, V. V.; Shekarova, O. N.; Savinetskaya, L. E. (2010). "Dynamics of colonies of the speckled ground squirrel ( Spermophilus suslicus Guld., 1770) on the northern boundary of the habitat". Biology Bulletin. 37 (5): 532–536. Bibcode:2010BioBu..37..532S. doi:10.1134/S1062359010050134. S2CID25563611.
Matrosova, Vera A.; Volodin, Ilya A.; Volodina, Elena V.; Babitsky, Andrey F. (2007). "Pups crying bass: vocal adaptation for avoidance of age-dependent predation risk in ground squirrels?". Behav Ecol Sociobiol. 62 (2): 181–191. doi:10.1007/s00265-007-0452-9. S2CID5688475.